Method and apparatus for soft tissue fixation

ABSTRACT

A tissue fixation apparatus can include a flexible construct and an elongated locking member. The flexible construct can include at least two adjustable loops and tensioning members. The two adjustable loops can be configured to pass through the first tissue, and to be spaced apart along an outer surface of the first tissue in a first direction. The tensioning members can extend from the two adjustable loops, and can be configured to reduce the two adjustable loops from a first size to a second size. The flexible construct can be attached to the second tissue by an anchor. The locking member can be configured to be received within the two adjustable loops at the first size, and to engage the two adjustable loops at the second size.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a divisional of U.S. patent application Ser. No. 13/098,927 filed on May 2, 2011, now U.S. Pat. No. 8,652,171 issued on Feb. 18, 2014, which is a continuation-in-part of U.S. patent application Ser. No. 12/196,398 filed on Aug. 22, 2008, now U.S. Pat. No. 7,959,650 issued on Jun. 14, 2011, which is a continuation-in-part of (a) U.S. patent application Ser. No. 11/541,506 filed on Sep. 29, 2006, now U.S. Pat. No. 7,601,165 issued on Oct. 13, 2009; (b) U.S. patent application Ser. No. 11/935,681 filed on Nov. 6, 2007, now U.S. Pat. No. 7,905,903 issued on Mar. 15, 2011; and (c) U.S. patent application Ser. No. 11/784,821 filed on Apr. 10, 2007.

This application is a divisional of U.S. patent application Ser. No. 13/098,927 filed on May 2, 2011, now U.S. Pat. No. 8,652,171 issued on Feb. 18, 2014, which is a continuation-in-part of U.S. patent application Ser. No. 12/938,902 filed on Nov. 3, 2010, now U.S. Pat. No. 8,597,327 issued on Dec. 3, 2013, which is a continuation-in-part of U.S. patent application Ser. No. 12/915,962 filed on Oct. 29, 2010, now U.S. Pat. No. 8,562,647 issued on Oct. 22, 2013, which is a continuation-in-part of U.S. patent application Ser. No. 12/719,337 filed on Mar. 8, 2010, which is a continuation-in-part of U.S. patent application Ser. No. 12/489,168 filed on Jun. 22, 2009, now U.S. Pat. No. 8,361,113 issued on Jan. 29, 2013, which is a continuation-in-part of U.S. patent application Ser. No. 12/474,802 filed on May 29, 2009, now U.S. Pat. No. 8,088,130 issued on Jan. 3, 2012, which is a continuation-in-part of (a) U.S. patent application Ser. No. 12/196,405 filed on Aug. 22, 2008, now U.S. Pat. No. 8,128,658 issued on Mar. 6, 2012; (b) U.S. patent application Ser. No. 12/196,407 filed on Aug. 22, 2008, now U.S. Pat. No. 8,137,382 issued on Mar. 20, 2012; (c) U.S. patent application Ser. No. 12/196,410 filed on Aug. 22, 2008, now U.S. Pat. No. 8,118,836 issued on Feb. 21, 2012; and (d) a continuation-in-part of U.S. patent application Ser. No. 11/541,506 filed on Sep. 29, 2006, now U.S. Pat. No. 7,601,165 issued on Oct. 13, 2009.

This application is a divisional of U.S. patent application Ser. No. 13/098,927 filed on May 2, 2011, now U.S. Pat. No. 8,652,171 issued on Feb. 18, 2014, which is a continuation-in-part of U.S. patent application Ser. No. 12/788,978 filed on May 27, 2010.

This application is a divisional of U.S. patent application Ser. No. 13/098,927 filed on May 2, 2011, now U.S. Pat. No. 8,652,171 issued on Feb. 18, 2014, which is a continuation-in-part of U.S. patent application Ser. No. 12/702,067 filed on Feb. 8, 2010, which is a continuation of U.S. patent application Ser. No. 11/541,505 filed on Sep. 29, 2006, now U.S. Pat. No. 7,658,751 issued on Feb. 9, 2010.

This application is a divisional of U.S. patent application Ser. No. 13/098,927 filed on May 2, 2011, now U.S. Pat. No. 8,652,171 issued on Feb. 18, 2014, which is a continuation-in-part of U.S. patent application Ser. No. 12/570,854 filed on Sep. 30, 2009, now U.S. Pat. No. 8,303,604 issued on Nov. 6, 2012, which is a continuation-in-part of: (a) U.S. patent application Ser. No. 12/489,181 filed on Jun. 22, 2009, now U.S. Pat. No. 8,298,262 issued on Oct. 30, 2012; (b) U.S. patent application Ser. No. 12/014,399 filed on Jan. 15, 2008, now U.S. Pat. No. 7,909,851 issued on Mar. 22, 2011, which is a continuation-in-part of U.S. patent application Ser. No. 11/347,661 filed on Feb. 3, 2006; now U.S. Pat. No. 7,749,250 issued on Jul. 6, 2010; and (c) U.S. patent application Ser. No. 12/014,340 filed on Jan. 15, 2008, now U.S. Pat. No. 7,905,904 issued on Mar. 15, 2011.

The entire disclosures of the aforementioned references are expressly incorporated herein by reference.

FIELD

The present disclosure relates to methods and apparatuses for securing soft tissue using a flexible suture construct and, more particularly, to flexible suture constructs including adjustable loops.

BACKGROUND

This section provides background information related to the present disclosure which is not necessarily prior art.

Surgical procedures are often performed on a body, for example, a human body or anatomy, to repair or replace various portions thereof. For example, the soft tissues of the body may need to be reattached to bones or a tear in the soft tissue may need repaired due to trauma, overuse, surgical intervention, or disease.

Soft tissues can be reattached to a bone or repaired using fastening devices such as screws, staples, and various types of suture anchors. Soft tissues are often fixed to various positions on the bone. For example, to replace a natural tendon fixation point or to replace the tendon itself, it may be desired to fix a graft to a selected bone area. One method of fixing a soft tissue to the selected area is to pass one end of a suture through a selected portion of the soft tissue to form a knot and fix another end of the suture to a selected area on the bone with a suture anchor. The present teachings provide surgical methods and apparatuses for improving engagement between a suture construct and a soft tissue.

SUMMARY

This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.

The present teachings provide surgical methods of attaching a first tissue to a second tissue. In one example, an exemplary method can include passing at least two adjustable loops through at least the first tissue to extend from an outer surface of the first tissue opposite a tissue engaging surface facing the second tissue, and attaching the two adjustable loops to a first selected area of the second tissue. The method can further include positioning a locking member within the two adjustable loops such that the locking member extends between the two adjustable loops adjacent the outer surface, engaging the locking member with the outer surface by drawing the two adjustable loops towards the outer surface, and compressing the first tissue between the locking member and the second tissue by tensioning the two adjustable loops.

In another example, the method can include attaching a suture anchor including a flexible construct to the second tissue, wherein the flexible construct extends from the suture anchor and includes at least two self-locking adjustable loops and tensioning members extending from the two adjustable loops. The method can further include passing the at least two self-locking adjustable loops and the tensioning members through the first tissue to extend from an outer surface of the first tissue opposite a tissue engaging surface facing the second tissue. The method can further include positioning an elongated locking member within the two self-locking adjustable loops such that the locking member extends between the two self-locking adjustable loops adjacent the outer surface. The method can further include cinching the two self-locking adjustable loops around the locking member by selectively pulling on the tensioning members, engaging the locking member with the outer surface of the first tissue, and compressing the first tissue between the locking member and the second tissue by selectively pulling on the tensioning members.

In another example, the method can include attaching a self-locking, first adjustable loop to a first anchor at a first end of the first adjustable loop and a second anchor at a second end of the first adjustable loop, wherein the first adjustable loop includes a first tensioning member. The method can further include attaching a self-locking, second adjustable loop to a third anchor at a first end of the second adjustable loop and a fourth anchor at a second end of the second adjustable loop, wherein the second adjustable loop includes a second tensioning member. The method can further include passing the first ends of the first and second adjustable loops through separate apertures in the first tissue to extend from an outer surface of the first tissue opposite a tissue engaging surface facing the second tissue. The method can further include attaching the first and third anchors to the second tissue in a first selected area overlapping the first tissue, and attaching the second and fourth anchors to the second tissue in a second selected area spaced apart from the first selected area. The method can further include positioning a locking member between the outer surface and the first and second adjustable loops, and engaging the first and second adjustable loops with the locking member by pulling on the first and second tensioning members. The method can further include engaging the locking member with the outer surface of the first tissue, and compressing the first tissue between the locking member and the second tissue by pulling on the first and second tensioning members. The second selected area can be disposed adjacent an end of the first tissue.

The present teachings also provide tissue fixation apparatuses that can be used to attach a first tissue to a second tissue. In one example, an exemplary tissue fixation apparatus can include a flexible construct and an elongated locking member. The flexible construct can include at least two adjustable loops, tensioning members, and an anchor. The two adjustable loops can be configured to pass through the first tissue, and to be spaced apart along an outer surface of the first tissue in a first direction. The tensioning members can extend from the two adjustable loops, and can be configured to reduce the two adjustable loops from a first size to a second size. The anchor can be configured to attach the flexible construct to the second tissue in a first selected area of the second tissue. The locking member can be configured to be received within the two adjustable loops at the first size, and to engage the two adjustable loops at the second size.

Further areas of applicability will become apparent from the description provided herein. The description and specific examples in this summary are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.

DRAWINGS

The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.

FIGS. 1-3 are fragmentary side views illustrating an exemplary tissue fixation device and method for affixing two tissues together using the tissue fixation device according to the present teachings;

FIGS. 4-6 are fragmentary environmental perspective views illustrating an exemplary method of using the tissue fixation device shown in FIGS. 1-3 to affix a rotator cuff to a humerus;

FIG. 7 is a perspective view illustrating an exemplary locking member according to the present teachings;

FIG. 8 is a fragmentary top view illustrating another exemplary locking member according to the present teachings;

FIG. 9 is a fragmentary top view illustrating another exemplary locking member according to the present teachings;

FIG. 10 is a top view illustrating an exemplary adjustable locking member according to the present teachings;

FIG. 11 is a top view illustrating another exemplary adjustable locking member according to the present teachings;

FIG. 12 is a top view illustrating another exemplary adjustable locking member according to the present teachings;

FIG. 13 is a top view illustrating another exemplary adjustable locking member according to the present teachings;

FIG. 14 is a top view illustrating another exemplary adjustable locking member according to the present teachings;

FIG. 15 is a fragmentary side view illustrating an exemplary method for coupling a locking member to a flexible suture construct according to the present teachings;

FIG. 16 is a fragmentary side view illustrating another exemplary method for coupling a locking member to a flexible suture construct according to the present teachings;

FIG. 17 is a fragmentary environmental perspective view illustrating another exemplary method for affixing a rotator cuff to a humerus using another tissue fixation device according to the present teachings;

FIG. 18 is a fragmentary environmental perspective view illustrating another exemplary method for affixing a rotator cuff to a humerus using another tissue fixation device according to the present teachings;

FIG. 19 is a fragmentary environmental perspective view illustrating another exemplary method for affixing a rotator cuff to a humerus using another tissue fixation device according to the present teachings;

FIG. 20 is a fragmentary environmental perspective view illustrating another exemplary method for affixing a rotator cuff to a humerus using another tissue fixation device according to the present teachings;

FIG. 21 is an environmental perspective view illustrating another exemplary method for affixing two tissues together using another tissue fixation device according to the present teachings;

FIG. 22 is a view illustrating a flexible loop construct according to the present teachings; and

FIGS. 23-24 are fragmentary environmental perspective views illustrating another exemplary tissue fixation device and method of using the tissue fixation device for affixing a rotator cuff to a humerus.

Corresponding reference numerals indicate corresponding parts throughout the several views of the drawings.

DETAILED DESCRIPTION

Example embodiments will now be described more fully with reference to the accompanying drawings.

With particular reference to FIGS. 1-3, an exemplary tissue fixation device (TFD) 10 for affixing a first tissue 12 to a second tissue 14 is shown. The first tissue 12 and the second tissue 14 can be independently selected from soft tissue or bone to provide any one of a soft tissue-to-bone, a soft tissue-to-soft tissue, or a bone-to-bone connection. For purposes of the example shown in FIGS. 1-3, a soft tissue-to-bone connection is described. Various components of the TFD 10 are described first and then various surgical methods for affixing the first tissue 12 to the second tissue 14 using the TFD 10 are described.

Generally, the TFD 10 can be composed of various biocompatible materials, including bioresorbable and non-bioresorbable materials. The TFD 10 can include a flexible suture construct 20, a suture anchoring member 22, and a locking member 24. Generally, the suture construct 20 can be formed of a monofilament, a braided fiber or strand, or other flexible member or suture used to affix the tissues 12, 14. The suture construct 20 can include at least two adjustable loops 30, 32 and at least one tensioning member 34. In various implementations, as illustrated by the examples discussed below, a tensioning member 34 may be provided for each of the loops 30, 32. Additionally, the loops 30, 32 and the tensioning member or members 34 can be formed from a single suture construct.

Together, the loops 30, 32 and the tensioning member or members 34 can cooperate to cinch the loops 30, 32 and to create tension in the suture construct 20. In this way, the loops 30, 32 and the tensioning member or members 34 can cooperate to draw and/or compress the tissues 12, 14 together. The loops 30, 32 can be adapted to both receive and engage the locking member 24. In various implementations, the loops 30, 32 can be self-locking adjustable loops, as illustrated by the examples discussed below. Together, the loops 30, 32 and the locking member 24 can cooperate to engage a major or outer surface 36 of the first tissue 12 opposite a tissue engaging surface 38 to be engaged with the second tissue 14. The tensioning member or members 34 can be configured to adjust the suture construct 20 between an untensioned state and a tensioned state.

The loops 30, 32, the tensioning member or members 34, and/or the suture anchoring member 22 can be created using various surgical methods and suture constructs. For example, whip and/or mattress stitching methods employing a suture thread can be used. As another example, self-locking adjustable loop suture constructs can be employed. Exemplary self-locking adjustable loop suture constructs are disclosed in commonly assigned U.S. Pat. No. 7,658,751 and U.S. Pat. No. 7,601,165, the entire disclosures of which are expressly incorporated herein by reference.

According to the example shown in FIGS. 1-3, the suture construct 20 can include a braided body 40 and tensioning strands 42, 44 that form self-locking adjustable loops 30, 32 and separate tensioning members 34 for each of the loops 30, 32. The braided body 40 and the tensioning strands 42, 44 can be formed in a single suture construct using a braiding process for braiding fibers composed of a biocompatible material. The braided body 40 can define a longitudinal passage 50 and apertures 52, 54 longitudinally spaced along and in communication with the longitudinal passage 50. The apertures 52, 54 can be created during the braiding process as loose portions between pairs of fibers. The tensioning strands 42, 44 can be created using one or more of the fibers used to create the braided body. In this way, the tensioning strands 42, 44 can be integral to the braided body 40.

An end 56 of the tensioning strand 42 can be inserted through the aperture 52 and passed through the longitudinal passage 50 and out the aperture 54 to create the loop 30. Similarly, an end 58 of the tensioning strand 44 can be inserted through the aperture 54 and passed through the longitudinal passage 50 and out the aperture 52 to create the loop 32. Sizes or diameters of the loops 30, 32 can be adjusted by retracting or advancing the tensioning strands 42, 44, respectively, within the longitudinal passage 50.

The suture anchoring member 22 can be configured to affix the suture construct 20 to the second tissue 14. In various implementations, the suture anchoring member 22 can be created by the suture construct 20 alone, or in combination with, a separate component. According to the example shown in FIGS. 1-3, the suture anchoring member 22 can be a separate fastener or suture anchor 60 including external threads 62 configured to threadingly engage the second tissue 14 and an eyelet 64 configured to receive the braided body 40. It should be understood that the suture anchor 60 is merely exemplary in nature, and that other suture anchors can be used. For example, threaded or non-threaded suture anchors can be used. The suture anchor 60 can be composed of various bioresorbable materials such as, for example, the LactoSorb® material available from Biomet Sports Medicine, LLC of Warsaw, Ind. Alternately, or additionally, the suture anchor may be composed of other non-bioresorbable materials, such as, for example, titanium-based materials. Various bioresorbable and non-bioresorbable, soft and hard suture anchors are available from, for example, Biomet Sports Medicine, LLC of Warsaw, Ind.

The locking member 24 can be an elongated member that is received within each of the loops 30, 32, and that spans a lateral distance between the loops 30, 32. The locking member 24 can be further configured to engage and thereby restrain the loops 30, 32 from pulling through the first tissue 12 and to maintain the lateral distance between the loops 30, 32, when the suture construct 20 is in the tensioned state. For example, the locking member 24 can be constructed to have a predetermined strength for a period after implantation for resisting pull through by the loops 30, 32. The locking member 24 can be further sized to provide a predetermined bearing surface for distributing compressive loads to the first tissue 12 generated by the suture construct 20 in the tensioned state. More specifically, the locking member 24 can transmit compressive loads received from the loops 30, 32 to the first tissue 12.

Generally, the locking member 24 can be composed of various bioresorbable or non-bioresorbable materials. The locking member 24 can include flexible and/or semi-rigid sections that enable the locking member 24 to conform to the outer surface 36 of the first tissue 12, yet distribute the compressive loads to the first tissue 12 in a predetermined manner. According to the example shown in FIGS. 1-3, the locking member 24 can be a length of a flexible strip of surgical fabric such as, for example, surgical tape. The surgical tape can include braided fibers. The locking member 24 can be cut to a predetermined length and/or cut to a custom length during a surgical procedure based on a particular patient.

With additional reference to FIGS. 4-6, an exemplary surgical method for affixing the tissues 12, 14 together using the TFD 10 according to the present teachings will now be described. For exemplary purposes, the method includes affixing a rotator cuff 70 to a humerus 72. In various implementations, the TFD 10 and the corresponding method can include two or more suture constructs, such as the suture construct 20, with a single locking member, such as the locking member 24. As illustrated in FIGS. 4-6, the TFD 10 can further include a second suture construct 20′ substantially similar to the suture construct 20. The second suture construct 20′ can be coupled to the second tissue 14 via a second suture anchoring member 22′ substantially similar to the suture anchoring member 22. For purposes of the following description, corresponding reference numerals are used to indicate corresponding parts of the suture constructs 20, 20′ throughout the several views of the drawings.

With continued reference to FIGS. 1-6, the method can include preparing the humerus 72 to receive suture anchoring members 22, 22′ in a selected area where the rotator cuff 70 is to be attached. The humerus 72 can be prepared by creating threaded holes in the humerus 72 in selected areas, each at a desired angle of insertion. The threaded holes can be created to a depth that enables the suture anchoring members 22, 22′ and/or portions of the suture constructs 20, 20′ to be located beneath an outer surface of the humerus 72.

Next, suture constructs 20, 20′ can be coupled to the humerus 72 via the suture anchoring members 22, 22′, respectively. The suture constructs 20, 20′ can be coupled to the suture anchoring members 22, 22′ prior to, at the same time, or after securing the suture anchoring members 22, 22′ to the humerus 72. According to the examples shown in FIGS. 1-6, the suture construct 20 can be coupled to the suture anchoring member 22 prior to threadingly engaging the suture anchoring member 22 with the humerus 72. More particularly, tensioning strand 42 can be inserted through the eyelet 64 until the braided body 40 is approximately centered within the eyelet 64. Next, the tensioning strands 42, 44 can be passed through the longitudinal passage 50 to create the loops 30, 32 as discussed above. The suture construct 20′ can be coupled to the suture anchoring member 22′ and subsequently to the tissue 14 in a similar manner.

Next, with particular reference to FIG. 4, the loops 30, 32 and tensioning strands 42, 44 can be passed through incisions or apertures 80, 82 formed into the rotator cuff 70. Similarly, the loops 30′, 32′ and tensioning strands 42′, 44′ can be passed through apertures 84, 86 of the rotator cuff 70. The apertures 80, 82, 84, 86 can be spaced apart and can extend generally parallel to one another as shown. In various implementations, one or more of the tensioning strands 42, 44, 42′, 44′ can be passed between the tissues 12, 14, rather than through the corresponding apertures 80, 82, 84, 86. The apertures 80, 82, 84, 86 can be created prior to or at the same time as the passing of the corresponding loops 30, 32, 30′, 32′ and the tensioning strands 42, 44, 42′, 44′. The loops 30, 32, 30′, 32′ and tensioning strands 42, 44, 42′, 44′ can be passed using a separate needle or other suitable suture passer or device. For example, suitable devices include devices sold under the trade names “BiPass™”, SpeedPass™”, and “ArthroPass™”, all made by Biomet Sports Medicine, LLC of Warsaw, Ind.

The loops 30, 32, 30′, 32′ can be passed such that distal ends of the loops 30, 32, 30′, 32′ are spaced apart along a major or outer surface 88 of the rotator cuff 70. The loops 30, 32, 30′, 32′ can be spaced apart along a line or axis 89 to face or open towards each other as shown. The loops 30, 32, 30′, 32′ can be spaced apart to span a selected area of the rotator cuff 70 to be attached to the humerus 72. The tensioning strands 42, 44, 42′, 44′ can be passed through the same apertures 80, 82, 84, 86 as the corresponding loops 30, 32, 30′, 32′ as shown, or through separate, spaced apertures as discussed in further detail below. Next, as shown between FIGS. 4-5, the locking member 24 can be passed through and positioned within each of the loops 30, 32, 30′, 32′. Sizes or diameters of the loops 30, 32, 30′, 32′ can be adjusted to enable the locking member 24 to be passed through the loops 30, 32, 30′, 32′. The diameters can be adjusted as discussed above prior to or when positioning the locking member 24.

With the locking member 24 thus positioned, the tensioning strands 42, 44, 42′, 44′ can be selectively pulled to cinch the loops 30, 32, 30′, 32′ around the locking member 24 and to draw the locking member 24 into engagement with the rotator cuff 70. With the locking member 24 engaged, the tensioning strands 42, 44, 42′, 44′ can be further pulled to further close and tension the loops 30, 32, 30′, 32′ and draw the locking member 24 towards the suture anchoring members 22, 22′. Further drawing the locking member 24 can draw the rotator cuff 70 in close proximity with the humerus 72 and subsequently compress the rotator cuff 70, thereby creating tension in the suture constructs 20, 20′. More specifically, the rotator cuff 70 can be drawn into a desired relationship with the humerus 72. FIGS. 1 and 4 illustrate the suture constructs 20, 20′ in an untensioned state. FIGS. 2, 3, and 5 illustrate the suture constructs 20, 20′ in a tensioned state.

Tension in the loops 30, 32, 30′, 32′ can be retained by the self-locking features of the constructs 20, 20′ without continuing to pull on the tensioning strands 42, 44, 42′, 44′. Although not specifically shown, with the rotator cuff 70 and the humerus 72 in the desired relationship, one or more of the tensioning strands 42, 44, 42′, 44′ can be cut to a desired length, for example, flush to the outer surface 88. In this way, excess length can be removed. Alternately, the tensioning strands 42, 44, 42′, 44′ can be drawn past an end of the rotator cuff 70 and attached to a selected area of the humerus 72 as shown in FIG. 6. More particularly, the tensioning strands 42, 44, 42′, 44′ can be drawn and attached so as to extend in a direction generally parallel to a direction in which the rotator cuff 70 contracts during muscle action. Tensioning strands 44, 44′ can be drawn around the locking member 24 and positioned to adjoin the loops 32, 32′, respectively, as shown.

The tensioning strands 42, 44, 42′, 44′ can be attached using another suture anchoring member 90 substantially similar to the suture anchoring member 22. The tensioning strands 42, 44, 42′, 44′ can be coupled to the suture anchoring member 90 by passing the tensioning strands 42, 44, 42′, 44′ through an eyelet 92 of the suture anchoring member 90 and creating a knot 94. The humerus 72 can be prepared to receive the suture anchoring member 90 in substantially the same manner as the suture anchoring members 22, 22′.

With particular reference to FIGS. 7-14, various other exemplary configurations of the locking member 24 according to the present teachings are shown. FIGS. 7-9 illustrate various flexible, elongated, and generally thin, flat configurations that can be cut to a desired length and/or width from a larger stock of material prior to and/or during a surgical procedure. With particular reference to FIG. 7, an exemplary locking member 100 can include monofilament fibers 102, 104 connected along a length by a fabric of intertwined threads, or braided fabric 106. The monofilament fibers 102, 104 can have diameters greater than a thickness of the braided fabric 106. The braided fabric 106 can circumscribe the monofilament fibers 102, 104 and include a central section 108 that spans a width between the monofilament fibers 102, 104. The locking member 100 can be oriented between adjacent loops (e.g., loops 30, 32) of a suture construct so that the monofilament fibers 102, 104 span a distance between the loops. Alternately, the locking member 100 can be oriented so that the central section 108 spans the distance between the loops and the larger side sections created by the monofilament fibers 102, 104 engage opposite sides of the loops. In this way, the monofilament fibers 102, 104 can provide a loop engaging feature for fixing ends of the locking member 100 relative to the loops and/or for fixing the distance between the loops.

Referring now to FIG. 8, another exemplary locking member 120 can include outwardly extending edges or protrusions 122, 124 that create peripheral recesses along a length that are configured to engage two or more loops (e.g., loops 30, 32) of a suture construct. At least two protrusions 122, 124 can be provided to fixedly position the loops and thereby maintain a distance between the loops when the loops are engaged. The protrusions 122, 124 can extend at an angle, for example towards each other, to create barbs or hooks as shown for engaging and securely holding the loops at a separated distance. In an exemplary construction, the locking member 120 can include monofilament fibers 126 connected along a length by a braided fabric 128 in a substantially similar way as the locking member 100. The protrusions 122, 124 can be created using various methods. For example, the protrusions 122, 124 can be created during the braiding process used to create the braided fabric 128. As another example, a cutting process, for example a die cutting process, can be used to create the protrusions 122, 124.

Referring now to FIG. 9, another exemplary locking member 140 can include a length or strip of a non-woven bio-textile 142, such as, for example, the Scaftex® materials offered by Biomedical Structures of Warwick, R.I. Non-woven bio-textiles can be manufactured from a variety of synthetic, absorbable polymeric fibers, including polyglycolic acid (PGA), poly-L-lactide (PLLA), poly DL-lactide-co-glycolide acid (PLGA), blends, and other fibers. The bio-textile 142 can include first regions 144 having a higher density than second regions 146. The first and second regions 144, 146 can have a predetermined and regular arrangement with respect to a broad or major surface of the locking member 140 configured to engage loops of a suture construct. The bio-textile 142 can be die cut from a sheet to include peripheral depressions 148 along opposite sides configured to engage the loops of the suture construct. The peripheral depressions 148 can adjoin the higher density first regions 144. In this way, the loops can engage and be retained in higher density regions specifically suited to restrain the loops from pulling through the adjoining tissue.

FIGS. 10-14 illustrate various adjustable locking members according to the present teachings. Generally, the locking members are flexible and elongate configurations created using various adjustable loop constructions. The adjustable loop constructions can enable adjustments to sizes or diameters of one or more loop sections and an overall length of the locking members prior to and during a surgical procedure. The adjustments can further enable loop engaging members at opposite ends of the locking members to be brought into engagement with one or more loops of a suture construct. The loop engaging members can be deformable between a first configuration when the locking members are untensioned and/or unengaged with loops of a suture construct and a second configuration facilitating engagement between the locking members and the loops. Additional suitable adjustable loop constructions are disclosed in commonly assigned U.S. patent application Ser. No. 11/541,506, the entire disclosure of which is expressly incorporated herein by reference.

With particular reference to FIG. 10, an exemplary adjustable locking member 160 can include an adjustable loop construct including a sleeve 162, a fiber or strand 164, and sleeves 166, 168. The sleeve 162 can have a braided construction and can define a longitudinal passage 170 and apertures 172, 174. The strand 164 can be wrapped into a single loop or coil passing through the longitudinal passage 170 and the sleeves 166, 168 as shown to create adjustable loop sections that extend from opposite ends of the sleeve 162. Ends 176, 178 of the strand 164 can pass through the apertures 172, 174 and can be used as tensioning members used to adjust sizes or diameters of the adjustable loop sections and thereby adjust an overall length of the locking member 160 or, more specifically, a distance between the sleeves 166, 168. The sleeves 166, 168 can have a braided construction similar to the sleeve 162 and can function as loop engaging members.

Referring now to FIG. 11, another exemplary adjustable locking member 180 can include an adjustable loop construct including a fiber or strand 182 and sleeves 184, 186. The strand 182 can be wrapped into a single loop or coil passing through the sleeves 184, 186 as shown to create an adjustable closed loop configuration. Ends 188, 190 of the strand 182 can extend through the sleeves 184, 186 and exit at opposite ends of the sleeve 184. A size or diameter of the loop or coil and an overall distance between the sleeves 184, 186 can be adjusted by pulling on one or both the first and second ends 188, 190. The sleeves 184, 186 can include flexible sections to facilitate adjustments and/or semi-rigid sections to maintain a predetermined curvature or diameter of the sleeves 184, 186 after the adjustments. The sleeves 184, 186 can also function as loop engaging members deformable between a first configuration and a second configuration. The first configuration can be a first shape configured to maintain an overall shape of the locking member 180 prior to engaging the locking member 180 with loops of a suture construct, for example, the shape shown in FIG. 11. The second configuration can be a second shape different from the first shape configured to facilitate engagement between the locking member 180 and the loops of the suture construct, for example, the cinched shape shown in FIG. 16 and discussed below.

Referring now to FIG. 12, another exemplary adjustable locking member 200 can include a self-locking adjustable loop construct formed from a braided suture construct. The locking member 200 can include a braided body 202, fibers or strands 204, 206, and sleeves 208, 210. The braided body 204 can have a longitudinal passage 212 and apertures 214, 216. The longitudinal passage 212 and the apertures 214, 216 can be sized relative to the strands 204, 206 to provide the self locking feature. A first end 217 of the strand 204 can be passed through the sleeve 208, then through the aperture 214 and the longitudinal passage 212 and out the aperture 216 to create a first self-locking adjustable loop at one end of the adjustable locking member 200. A second end 219 of the strand 206 can be passed through the sleeve 210, then through the aperture 216 and the longitudinal passage 212 and out the aperture 214 to create a second self-locking adjustable loop at an opposite end.

The apertures 214, 216 can be loose portions between pairs of fibers forming the braided body 204. While two apertures 214, 216 are shown, additional apertures can be provided so that each of the strands 204, 206 can be passed through separate apertures to create the adjustable loops. Sizes or diameters of the adjustable loops can be separately adjusted by selectively pulling on the first and second ends 217, 219. By adjusting the diameter of one or both of the loops, an overall length of the adjustable locking member 200 and, more particularly, a distance between the sleeves 208, 210 can be adjusted.

Referring now to FIG. 13, another exemplary adjustable locking member 220 can include an adjustable loop construct including a tubular body 222, a fiber or strand 224, and sleeves 226, 228. The strand 224 can be wound in a single loop or coil passing through the tubular body 222 and the sleeves 226, 228, as shown, to create two adjustable loop sections extending from opposite ends of the tubular body 222. First and second ends 230, 232 of the strand 224 can pass through the tubular body 222 to exit at one of the opposite ends. The first end 230 can be a free end that functions as a tensioning member that can be pulled to simultaneously adjust sizes or diameters of the adjustable loop sections and thereby adjust a distance between the sleeves 226, 228. The second end 232 can be tied in a knot 234 that engages the tubular body 222 to prevent the second end 232 from pulling through the tubular body 222 when making adjustments.

Referring now to FIG. 14, another exemplary adjustable locking member 240 can include an adjustable loop construct including a fiber or strand 242 and sleeves 244, 246. The strand 242 can be wound into a single loop or coil passing through the sleeves 244, 246, as shown, to create an adjustable closed loop configuration similar to that of the locking member 180 discussed above. First and second ends 248, 250 can exit opposite ends of the sleeve 244. The first end 248 can be a free end that functions as a tensioning member. The second end 250 can be tied in a knot 252 that engages the sleeve 244 to prevent the second end 250 from pulling through the sleeve 244 when pulling on the first end 248 to make adjustments.

With particular reference to FIG. 15, another TFD 300 and surgical method for using the TFD 300 for affixing the first tissue 12 to the second tissue 14 is shown. The TFD 300 and the method illustrate alternate features that can be employed to engage a locking member with two or more loops of a suture construct, according to the present teachings. For exemplary purposes, the TFD 300 can include the suture constructs 20, 20′ and the suture anchoring members 22, 22′. The TFD 300 can further include a locking member 310. The locking member 310 can incorporate one or more features of the locking members 24, 100, 120, 140, 160, 180, 200, 220, 240 discussed above. According to the example shown in FIG. 15, the locking member 310 can be a fiber or strand 320 having first and second ends 322, 324.

With continued reference to FIG. 15, an exemplary method of using the TFD 300 can include coupling the suture constructs 20, 20′ to the second tissue 14 and passing the loops 30, 32, 30′, 32′ through the first tissue 12 in substantially the same manner as described above for the TFD 10. Next, with the suture constructs 20, 20′ in an untensioned state, the first end 322 can be passed through a first end loop, for example, the loop 30′, and then successively through the remaining loops 32′, 32, 30 in that order. Next, the strand 320 can be wrapped around a second end loop, here, the loop 30, by pulling the first end 322 back towards the adjacent loop 32. Next, the first end 322 can be successively passed back through the loops 32, 32′, 30′ in that order.

Once the strand 320 is routed through the loops 30, 32, 30′, 32′ in the foregoing manner, the tensioning strands 42, 44, 42′, 44′ can be selectively pulled to cinch the loops 30, 32, 30′, 32′ around the strand 320 and to draw the strand 320 into engagement with the first tissue 12. With the strand 320 engaged, a distance between the loops 30, 30′ can be adjusted by manipulating (e.g., pulling) one or both the first and second ends 322, 324. Next, the first and second ends 322, 324 can be secured together using a knot 326 that functions as a loop engaging member that engages the loop 30′ and thereby inhibits the loops 30, 30′ from separating during subsequent steps.

Next, the tensioning strands 42, 44, 42′, 44′ can be further selectively pulled to draw the loops 30, 32, 30′, 32′ and the strand 320 towards the suture anchoring members 22, 22′. Further drawing the loops 30, 32, 30′, 32′ can draw the first tissue 12 in close proximity with the second tissue 14 in a desired relationship, and subsequently compress the first tissue 12, thereby creating tension in the suture constructs 20, 20′. FIG. 15 illustrates the suture constructs 20, 20′ in a tensioned state. With the first and second tissues in the desired relationship, the tensioning strands 42, 44, 42′, 44′ can be drawn under tension and attached to a selected area of the second tissue 14 in any suitable manner. For example, the tensioning strands 42, 44, 42′, 44′ can be attached in a manner substantially similar to that described above for the TFD 10.

With particular reference to FIG. 16, another TFD 400 and surgical method for using the TFD 400 for affixing the first tissue 12 to the second tissue 14 will now be described. The TFD 400 and the method illustrate alternate features according to the present teachings that can be employed to engage loop engaging members of an adjustable locking member with two or more loops of a suture construct. For purposes of the example shown in FIG. 16, the locking member 180 shown in FIG. 11 can be employed in the TFD 400. The TFD 400 can include the suture constructs 20, 20′ and the suture anchoring members 22, 22′.

With reference to FIG. 11 and FIG. 16, an exemplary method of using the TFD 400 can include coupling the suture constructs 20, 20′ to the second tissue 14 and passing the loops 30, 32, 30′, 32′ through the first tissue 12 in substantially the same manner as described above for the TFD 10. Next, with the TFD 400 in an untensioned state, the locking member 180 can be passed through and positioned within the loops 30, 32, 30′, 32′ such that ends of the locking member 180 extend past the end loops 30, 30′. More particularly, the locking member 180 can be positioned such that the sleeves 184, 186 are disposed outboard of the end loops 30, 30′.

Once the locking member 180 is routed through the loops 30, 32, 30′, 32′ in the foregoing manner, the tensioning strands 42, 44, 42′, 44′ can be selectively pulled to cinch the loops 30, 32, 30′, 32′ around the locking member 180 and to draw the locking member 180 into engagement with the first tissue 12. With the locking member 180 engaged, the sleeves 184, 186 can be brought into engagement with the loops 30, 30′, respectively, by pulling on one or both the ends 188, 190. The sleeves 184, 186 can deform from a first configuration having a first shape (see FIG. 11) to a second configuration having a cinched shape as shown in FIG. 16 that resists pull through. Once the sleeves 184, 186 are engaged, a distance between the loops 30, 30′ can be reduced by further pulling on one or both of the ends 188, 190. Next, the first and second ends 188, 190 can be tied together to create the knot 326 that engages the sleeve 184 and thereby fixes the length of the locking member 180 and the distance between the loops 30, 30′.

Next, the tensioning strands 42, 44, 42′, 44′ can be further selectively pulled to draw the locking member 180 towards the suture anchoring members 22, 22′. Further drawing the loops 30, 32, 30′, 32′ can draw the first tissue 12 in close proximity with the second tissue 14 in a desired relationship and subsequently compress the first tissue 12, thereby creating tension in the suture constructs 20, 20′. FIG. 16 illustrates the suture constructs 20, 20′ in a tensioned state. With the first and second tissues 12, 14 in the desired relationship, the tensioning strands 42, 44, 42′, 44′ can be drawn under tension and attached to a selected area of the second tissue 14 in any suitable manner. For example, the tensioning strands 42, 44, 42′, 44′ can be attached in a manner substantially similar to that described above for the TFD 10.

With particular reference to FIG. 17, another TFD 500 and surgical method of using the TFD 500 for affixing two tissues according to the present teachings will now be described. The TFD 500 can be used, for example, to affix the rotator cuff 70 to the humerus 72. The TFD 500 and the method illustrate alternate features according to the present teachings including coupling ends of a locking member with a tensioning member of a suture construct. In this way, the locking member can assist the suture construct to resist tension generated in one or both the tissues due to muscle contraction.

For purposes of the example shown in FIG. 17, the TFD 500 can include the self-locking suture constructs 20, 20′, the suture anchoring members 22, 22′, and a locking member 502. The locking member 502 can be similar to the locking member 24, except that the locking member 502 can have a length sufficient to enable ends 504, 506 to be coupled to the humerus 72 at one or more remote locations. For example, the ends 504, 506 can be coupled at the locations separate from the locations where the locking member 502 is coupled via the suture anchoring members 22, 22′. According to the example shown in FIG. 17, the ends 504, 506 can be coupled to the humerus 72 along with the tensioning strands 42, 44, 42′, 44′ via a suture anchoring member 508. The ends 504, 506 can be coupled to the suture anchoring member 508 via a knot or other suitable locking device.

With continued reference to FIG. 17, an exemplary method of using the TFD 500 can include coupling the suture constructs 20, 20′ to the humerus 72 and passing the loops 30, 32, 30′, 32′ through the rotator cuff 70 in substantially the same manner as described above for the TFD 10. Next, with the TFD 500 in an untensioned state, the locking member 502 can be passed through and positioned within the loops 30, 32, 30′, 32′ such that the ends 504, 506 extend past the end loops 30, 30′.

Once the locking member 502 is routed through the loops 30, 32, 30′, 32′ in the foregoing manner, the tensioning strands 42, 44, 42′, 44′ can be selectively pulled to cinch the loops 30, 32, 30′, 32′ around the locking member 502 and to draw the locking member 502 into engagement with the rotator cuff 70. Next, the tensioning strands 42, 44, 42′, 44′ can be further selectively pulled to draw the locking member 180 towards the suture anchoring members 22, 22′. Further drawing the loops 30, 32, 30′, 32′ can draw the first tissue 12 in close proximity with the second tissue 14 in a desired relationship and subsequently compress the first tissue 12, thereby creating tension in the suture constructs 20, 20′. FIG. 17 illustrates the suture constructs 20, 20′ in a tensioned state. With tension in the suture constructs 20, 20′, one or more of the tensioning strands 42, 44, 42′, 44′ can be cut to remove excess length where the ends of the one or more strands are not to be attached to the humerus 72. Alternately, the tensioning strands 42, 44, 42′, 44′ can be drawn past an end of the rotator cuff 70 and attached to the humerus 72 as shown. While drawing and/or attaching one or more of the tensioning strands 42, 44, 42′, 44′, the ends 504, 506 can be drawn past the end of the rotator cuff 70 and attached to the humerus 72.

With particular reference to FIG. 18, another TFD 600 and surgical method of using the TFD 600 for affixing two tissues according to the present teachings will now be described. The TFD 600 can be used, for example, to affix the rotator cuff 70 to the humerus 72. The TFD 600 and the method illustrate alternate features according to the present teachings including overlapping tensioning members of suture constructs in a criss-cross fashion and securing the tensioning members of each suture construct to the humerus 72 at at least two separate locations. An overlapping structure of the tensioning members can engage and thereby further affix the rotator cuff 70 to the humerus 72. The overlapping structure can further reduce localized stress in one or both the rotator cuff 70 and the humerus 72 by distributing the loads transmitted between the TFD 600 and the rotator cuff 70 and humerus over a larger area and creating a larger area of compression.

According to the example shown in FIG. 18, the TFD 600 can include a first suture construct 602, a second suture construct 604, and a locking member 606. The first and second suture constructs 602, 604 each can include at least two adjustable loops tensioned by corresponding tensioning members. For example, the first suture construct 602 can include four adjustable loops 610 tensioned by four corresponding tensioning strands 612 as shown. Similarly, the second suture construct 604 can include four adjustable loops 614 tensioned by four corresponding tensioning strands 616. The adjustable loops 610, 614 can be created using various suturing techniques and devices. According to the example shown in FIG. 18, the adjustable loops 610, 614 can be created by passing a suture through the rotator cuff 70 using a whip and/or a mattress stitching technique. In various implementations, the adjustable loops 610, 614 can be created from separate sutures attached to the humerus 72 in a manner similar to that discussed below with reference to FIG. 21. The adjustable loops 610, 614 can create a series of loops spaced apart in a substantially linear arrangement along a line or axis 618 as shown. The linear arrangement or axis 618 can extend in a direction substantially transverse to a direction in which the rotator cuff 70 tensions due to muscle contraction.

The tensioning strands 612, 616 can exit the same proximal side of the rotator cuff 70 that the adjustable loops 610, 614 are disposed, and in a substantially linear arrangement in the direction in which the rotator cuff 70 tensions due to muscle contraction. The tensioning strands 612, 614 can exit on either side of the adjustable loops 610, 614. For example, the tensioning strands 610, 614 can each exit in close proximity to the corresponding adjustable loops 610, 614 on a side closest to an end of the rotator cuff 70 as shown. The tensioning strands 612, 616 can be attached to the humerus 72 in at least two selected areas separated in the same direction in which the adjustable loops 610, 614 are arranged.

According to the example shown in FIG. 18, the tensioning strands 612, 616 can be secured at two locations indicated by reference numerals 620, 622. More specifically, at least one of each of the tensioning strands 612 and the tensioning strands 616 can be attached at the first location 620 and at least another one of each of the tensioning strands 612 and the tensioning strands 616 can be attached at the second location 622. For exemplary purposes, the tensioning strands 612, 614 can be attached to the first and second locations 620, 622 in an alternating arrangement as shown. When secured, the tensioning strands 612, 616 secured at the first location 620 can overlap the tensioning strands 612, 616 secured at the second location 622 in a criss-cross fashion. The locking member 606 can extend through each of the loops 610, 614 and can include a first end 630 and a second end 632 that are attached at the first location 620 and the second location 622, respectively.

With continued reference to FIG. 18, an exemplary method of using the TFD 600 will now be described. The method can include creating the loops 610, 614 and tensioning strands 612 and 616 to pass through and exit the rotator cuff 70 and attaching the loops 610, 614 to the humerus 72. The adjustable loops 610 can be attached to the humerus 72 using a first suture anchoring member such as, for example, the suture anchoring member 22 discussed above. Similarly, the adjustable loops 614 can be attached to the humerus 72 using a separate, second suture anchoring member in a similar manner.

Next, with the adjustable loops 610, 614 in an untensioned state, the locking member 606 can be passed through and positioned within the loops 610, 614 such that the ends 630, 632 extend past end loops of the adjustable loops 610, 614. Once the locking member 606 is routed through the loops 610, 614, the tensioning strands 612, 616 can be selectively pulled to cinch the loops 610, 614 around the locking member 606 and to draw the locking member 606 into engagement with the rotator cuff 70. Next, the tensioning strands 612, 616 can be further selectively pulled to draw the locking member 606 towards the humerus 72. Further drawing the loops 30, 32, 30′, 32′ can draw the rotator cuff 70 in close proximity with the humerus 72 in a desired relationship and subsequently compress the rotator cuff 70 against the humerus 72, thereby creating tension in the loops 610, 614. FIG. 18 illustrates the loops 610, 614 in a tensioned state.

While maintaining the tension in the loops 610, 614, a first pair of the tensioning strands 612 and a first pair of the tensioning strands 616 can be drawn together and attached at the selected location 620. Subsequently, a second pair of the tensioning strands 612 and a second pair of the tensioning strands 616 can be drawn together and attached at the selected location 622. When attached in the foregoing manner, the first and second pairs of the tensioning strands 612, 616 can extend at angles with respect to the axis 618 and overlap in a criss-cross fashion to create an overlapping structure that compresses an end portion of the rotator cuff 70 against the humerus 72. In this way, the overlapping structure can further secure the rotator cuff 70 to the humerus 72.

With particular reference to FIG. 19, another TFD 700 and surgical method of using the TFD 700 for affixing two tissues according to the present teachings will now be described. The TFD 700 can be used, for example, to affix the rotator cuff 70 to the humerus 72. The TFD 700 and the method illustrate alternate features according to the present teachings including using one or more portions of a suture construct to create a locking member for adjustable loops of the suture construct and securing the portions at a remote location.

According to the example shown in FIG. 19, the TFD 700 can include a first suture construct 702 and a second suture construct 704. The first and second suture constructs 702, 704 can be substantially similar to the suture constructs 20, 20′ and can be attached to the humerus 72 in substantially the same way as the suture constructs 20, 20′. The first suture construct 702 can include a first adjustable loop 710 tensioned by a tensioning strand 712 and a second adjustable loop 714 tensioned by a tensioning strand 716. The first adjustable loop 710 and the tensioning strand 712 can pass through a common first aperture 720 formed through the rotator cuff 70 and exit on the same side. The tensioning strand 712 can pass through the second adjustable loop 714. The second adjustable loop 714 and tensioning strand 716 can pass through a common second aperture 722. The tensioning strand 716 can pass through the adjustable loop 710.

The second suture construct 704 can include a third adjustable loop 730 tensioned by a tensioning strand 732 and a fourth adjustable loop 734 tensioned by a tensioning strand 736. The third adjustable loop 730 can pass through a first aperture 740 and the tensioning strand 732 can pass through a separate, second aperture 742 and through the adjustable loop 730. The fourth adjustable loop 734 can pass through a third aperture 744 and the tensioning strand 736 can pass through a separate, fourth aperture 746 and through the fourth adjustable loop 734. The adjustable loops 710, 714, 730, 734 can be spaced apart along a line or axis 750 and the apertures 720, 722, 740, 744 can extend at angles with respect to the axis 750. For example, the apertures 720, 722 can extend at angles of, for example, approximately forty-five degrees (45°) so that the adjustable loops 710, 714 can face each other and to facilitate the passage of the tensioning strands 712, 716. The apertures 740, 744 can extend at angles so that the adjustable loops 730, 734 face towards the apertures 742, 746 and thereby facilitate the passage of the tensioning strands 732, 736. The tensioning strands 712, 716, 732, 736 can be cut to remove excess length and/or attached to a selected area of the humerus 72 at a single, remote location 752 as shown or, alternately, can be secured at two or more remote locations.

With continued reference to FIG. 19, an exemplary method of using the TFD 700 can include attaching the first and second suture constructs 702, 704 to the humerus 72 and passing the adjustable loops 710, 714, 730 through the respective apertures 720, 722 of rotator cuff 70. The method can further include passing the tensioning strands 712, 716, 732 through the respective apertures 720, 722, 734. In various implementations, the tensioning strands 712, 716 can be passed through the apertures 720, 722 at the same time as the respective adjustable loops 710, 714 are passed.

Next, with the first suture construct 702 in an untensioned state, an end of the tensioning strand 712 can be inserted through the second adjustable loop 714 and an end of the tensioning strand 716 can be inserted through the adjustable loop 710. Next, the tensioning strands 712, 714 can be selectively pulled to cinch the adjustable loops 710, 714 around the tensioning strands 712, 714 and engage intermediate portions of the tensioning strands 712, 714 with the rotator cuff 70. Once the tensioning strands 712, 714 are engaged, the tensioning strands 712, 714 can be further selectively pulled to draw the rotator cuff 70 in close proximity to the humerus 72. Once the rotator cuff 70 is positioned against the humerus 72 in a desired relationship, the tensioning strands 712, 714 can be attached to the humerus 72 in tension to retain the relationship.

With the second suture construct 704 in an untensioned state, an end of the tensioning strand 732 can be inserted through the adjustable loop 730 and pulled to cinch the adjustable loop 730 and engage an intermediate portion of the tensioning strand 732 with the rotator cuff 70. Once engaged in the foregoing manner, the tensioning strand 732 can be further pulled to draw the rotator cuff 70 into a desired relationship and subsequently attached in tension to the humerus 72.

With particular reference to FIG. 20, another TFD 800 and surgical method of using the TFD 800 for affixing two tissues according to the present teachings will now be described. The TFD 800 can be used, for example, to affix the rotator cuff 70 to the humerus 72. The TFD 800 can include a suture construct 802 having at least two adjustable loops and at least one locking member that engages the adjustable loops. According to the example shown in FIG. 20, the suture construct 802 can include four adjustable loops 804, 806, 808, 810 and three locking members 820, 822, 824. In various implementations, the adjustable loops 804, 806 and the adjustable loops 808, 810 can be created using the suture construct 20 and the suture construct 20′, respectively.

The locking member 820, locking member 822, and locking member 824 can have ends 830, 832, ends 834, 836, and ends 838, 840, respectively. The locking member 820 can extend through and engage the loops 804, 806. The locking member 822 can extend through and engage the loops 806, 808. The locking member 824 can extend through and engage the loops 808, 810. The ends 830, 832, 834 can be attached to a selected area of the humerus 72 at a first location indicated by reference numeral 850, and the ends 836, 838, 840 can be attached at a second location indicated by reference numeral 852.

With continued reference to FIG. 20, an exemplary method of using the TFD 800 can include attaching the loops 804, 806, 808, 810 to the humerus 72 and passing the loops 804, 806, 808, 810 through the rotator cuff 70. The loops 804, 806, 808, 810 can be passed so as to extend along a line or axis 854 and face in a second direction substantially perpendicular to the axis 854. With the loops 804, 806, 808, 810 in an untensioned state, the ends 830, 832, the ends 834, 836, and the ends 838, 840 can be passed through the loops 804, 806, the loops 806, 808, and the loops 808, 810, respectively, in the second direction. When passed in the foregoing manner, portions of the locking members 804, 806, 808, 810 can span the corresponding loops 804, 806, 808, 810. Next, the ends 830, 832, 834, 836, 838, 840 can be pulled to create tension in the loops 804, 806, 808, 810 and to draw the rotator cuff 70 into close proximity with the humerus 72 in a desired relationship. With the rotator cuff 70 and the humerus 72 in the desired relationship, the ends 830, 832, 834, 836, 838, 840 can be attached to the humerus 72 at the respective locations 850, 852 in a tensioned state.

With particular reference to FIG. 21, another exemplary TFD 900 and surgical method of using the TFD 900 for affixing the first and second tissues 12, 14 according to the present teachings will now be described. The TFD 900 can be used, for example, to affix the rotator cuff 70 to the humerus 72. The TFD 900 and the method illustrate alternate features according to the present teachings. The alternate features can include engaging a locking member with at least two adjustable loops disposed on one side of a first tissue and drawing the locking member and the first tissue into engagement with a second tissue using tensioning strands disposed between the first and second tissues.

According to the example shown in FIG. 21, the TFD 900 can include a flexible suture construct 902 created by suture strands 904, 906. The suture strand 904 can be passed through the first tissue 12 to create loops 910, 912 that extend from a first side of the first tissue 12 opposite a second side to be engaged with the second tissue 14. The suture strand 904 can be further passed through the first tissue 12 such that ends 914 and 916 exit and extend from the first tissue 12 on the second side of the tissue facing the second tissue 14. The suture strand 906 can be passed through the first tissue 12 to create loops 920, 922 that extend from the first side of the first tissue 12 and ends 924, 926 that exit and extend from the second side of the first tissue 12. Each of the loops 910, 912, 920, 922 can be created by passing the respective suture strands 904, 906 through a single aperture or, alternately, through separate apertures in the first tissue 12. Ends of the suture strands 904, 906 can be secured to the second tissue 14 in any desired manner such as, for example, using one or more suture anchors. While two suture strands 904, 906 forming four loops 910, 912, 920, 922 are shown, fewer or more suture strands can be used where fewer or more loops are desired.

With continued reference to FIG. 21, an exemplary method of using the TFD 900 can include positioning a locking member (not shown) within the loops 910, 912, 920, 922 and subsequently engaging the loops 910, 912, 920, 922 with the first tissue 12 via the locking member. The loops 910, 912, 920, 922 can be engaged by pulling on the ends 914, 916, 924, 926 to cinch the loops 910, 912, 920, 922 into engagement with the locking member and to draw the locking member into engagement with the first tissue 12. The locking member can include one or more features of the locking members 24, 100, 120, 140, 160, 180, 200, 220, 240. With the loops 910, 912, 920, 922 engaged, the ends 914, 916, 924, 926 can be selectively pulled to draw the first tissue 12 into close proximity with the second tissue 14 in a desired relationship. The desired relationship can be maintained by maintaining tension in the loops 910, 912, 920, 922. With the first and second tissues 12, 14 in the desired relationship, the ends 914, 916, 924 and 926 can be drawn and attached to the second tissue 14 in tension to retain the relationship.

With reference to FIGS. 22-24, another TFD 1000 and surgical method of using the TFD 1000 for affixing the rotator cuff 70 to the humerus 72 according to the present teachings will now be described. The TFD 1000 can include two or more flexible anchors 1002, 1004, one or more self-locking, flexible suture constructs 1006, and a locking member 1010. For example, the TFD 1000 can include four (4) flexible anchors 1002, four (4) flexible anchors 1004, four (4) flexible suture constructs 1006, and one (1) locking member 1010 as shown. The locking member 1010 can incorporate one or more features of the locking members 24, 100, 120, 140, 160, 180, 200, 220, 240 discussed above.

With particular reference to FIG. 22, the flexible anchors 1002, 1004 can be elongate members having a sleeve or tubular construction. The flexible anchors 1002, 1004 can be configured to attach to the humerus 72 within respective bores 1012 formed in the humerus 72. For example, the flexible anchors 1002, 1004 can deform between a first shape configured to be received within the bores 1012 and a second shape larger than the first shape configured to engage the bores 1012. The flexible anchors 1002, 1004 can include longitudinal passages 1020, 1022 and openings 1024, 1026, 1028, 1030 extending through respective walls. The flexible suture construct 1006 can include a braided body 1040 and tensioning strands 1042, 1044 that form a self-locking adjustable loop including loop sections 1050, 1052. The braided body 1040 can define a longitudinal passage 1054 and openings 1056, 1058 in communication with the longitudinal passage 1054. The tensioning strands 1042, 1044 can extend from opposite ends of the braided body 1040.

The loop sections 1050, 1052 can be formed and coupled to the flexible anchors 1002, 1004 by passing the braided body 1040 and the tensioning strand 1042 through the flexible anchors 1002, 1004 as shown. More specifically, the tensioning strand 1042 and the braided body 1040 can pass through the openings 1024, 1026 and the longitudinal passage 1020 of the flexible anchor 1002. The tensioning strand 1042 can further pass through the openings 1028, 1030 and longitudinal passage 1022 of the flexible anchor 1004 and the openings 1056, 1058 and the longitudinal passage 1054 of the braided body 1040. When coupled, the flexible anchor 1002 and the braided body 1040 can be disposed at a first end 1060 and the flexible anchor 1004 can be disposed at a second end 1062. Further details of the flexible anchors 1002, 1004 and the flexible suture construct 1006 are disclosed in commonly assigned U.S. patent application Ser. No. 12/915,962, the entire disclosure of which is expressly incorporated herein by reference.

With continued reference to FIGS. 22-24, the method of using the TFD 1000 can include selectively adjusting a size of the loop sections 1050, 1052 by pulling on the tensioning strand 1042. The size of the loop sections 1050, 1052 can be adjusted to provide a desired length between the first and second ends 1060, 1062. The first ends 1060 can be passed through apertures 1068 in the rotator cuff 70 along a line or axis 1070 and the flexible suture anchors 1002 can secured within the respective bores 1012 formed in the humerus 72 at proximal locations 1072. The proximal locations 1072 can be located beneath the rotator cuff 70 when the rotator cuff 70 is secured in a desired position. The locking member 1010 can be positioned on an outer surface 1074 of the rotator cuff 70 to extend between the flexible suture constructs 1006, and generally parallel to the axis 1070. The second ends 1062 can be drawn over the locking member 1010, past an end 1080 of the rotator cuff 70, and secured within the respective bores 1012 formed in the humerus 72 at distal locations 1076 adjacent the end 1080. The distal locations 1076 can be spaced apart from the proximal locations 1072 and can be disposed adjacent the end 1080 of the rotator cuff 70 as best seen in FIG. 24. When secured, tension in the flexible suture constructs 1006 can compress the locking member 1010. The tensioning strands 1042, 1044 can be cut to a desired length, for example, flush to the outer surface 1074 of the rotator cuff 70.

The foregoing description of the embodiments has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same may also be varied in many ways. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure. 

What is claimed is:
 1. A tissue fixation apparatus for attaching a first tissue to a second tissue, comprising: a flexible construct including: a first adjustable loop and a second adjustable loop which are each configured to pass through the first tissue, and to be spaced apart along an outer surface of the first tissue in a first direction; a first tensioning member extending from the first adjustable loop and pullable to reduce a size of the first adjustable loop; and a second tensioning member extending from the second adjustable loop and pullable to reduce a size of the second adjustable loop; an anchor configured to attach the flexible construct to the second tissue in a first selected area of the second tissue; and an elongated locking member configured to be received within the first adjustable loop at a first size of the first adjustable loop and to be received within the second adjustable loop at a first size of the second adjustable loop, and to engage the first adjustable loop at a second size of the first adjustable loop size and to engage the second adjustable loop at a second size of the second adjustable loop.
 2. The tissue fixation apparatus of claim 1, wherein the locking member includes: an adjustable loop member; engagement members coupled to the loop member and engageable with the first and second adjustable loops; and a tensioning member extending from the adjustable loop member, and configured to reduce a diameter of the adjustable loop member.
 3. The tissue fixation apparatus of claim 2, wherein the adjustable loop member includes a filament wound into a coil defining an overall shape of the adjustable loop member.
 4. The tissue fixation apparatus of claim 3, wherein the filament passes through the engagement members.
 5. The tissue fixation apparatus of claim 2, wherein: the locking member further includes a sleeve, the adjustable loop member passes through the sleeve, and the engagement members are disposed adjacent opposite ends of the sleeve.
 6. The tissue fixation apparatus of claim 2, wherein the tensioning member is further configured to lock the diameter of the adjustable loop member.
 7. The tissue fixation apparatus of claim 1, wherein the locking member includes peripheral recesses configured to receive the first and second adjustable loops.
 8. The tissue fixation apparatus of claim 7, wherein the locking member includes barbs defining the peripheral recesses.
 9. The tissue fixation apparatus of claim 7, wherein: the locking member includes a fabric having first regions adjoining second regions, the first regions having a higher density than the second regions, and the peripheral recesses are disposed adjacent the first regions.
 10. The tissue fixation apparatus of claim 1, wherein: the flexible construct includes a braided body defining apertures disposed adjacent opposite ends, and the first and second tensioning members extend from the opposite ends and pass through the apertures to create the first and second adjustable loops.
 11. The tissue fixation apparatus of claim 10, wherein the braided body and the first and second tensioning members cooperate to lock the first adjustable loop at the second size of the first adjustable loop and the second adjustable loop at the second size of the second adjustable loop.
 12. The tissue fixation apparatus of claim 1, wherein the locking member includes: a pair of filaments having a length; and a braided fabric connecting the filaments along the length, wherein the filaments have diameters larger than a thickness of the braided fabric.
 13. The tissue fixation apparatus of claim 1, wherein the locking member includes: a braided body defining apertures disposed adjacent opposite ends; strands extending from the opposite ends and passing through the apertures to create two adjustable loop members; and engagement members attached to the two adjustable loop members, and configured to engage the first and second adjustable loops of the flexible construct.
 14. A tissue fixation apparatus for attaching a first tissue to a second tissue, comprising: a flexible construct including: a first adjustable loop and a second adjustable loop which are each configured to pass through the first tissue, and to be spaced apart along an outer surface of the first tissue in a first direction, a first tensioning member extending from the first adjustable loop and pullable to reduce a size of the first adjustable loop; and a second tensioning member extending from the second adjustable loop and pullable to reduce a size of the second adjustable loop, wherein the flexible construct is attachable to the second tissue by an anchor; and an elongated locking member configured to be received through the first adjustable loop at a first size of the first adjustable loop and to be received through the second adjustable loop at a first size of the second adjustable loop, and to engage the first adjustable loop at a second size of the first adjustable loop size and to engage the second adjustable loop at a second size of the second adjustable loop.
 15. The tissue fixation device of claim 14, wherein the locking member includes: an adjustable loop member; engagement members coupled to the adjustable loop member and engageable with the first and second adjustable loops; and a tensioning member extending from the adjustable loop member, and configured to reduce a diameter of the adjustable loop member.
 16. The tissue fixation apparatus of claim 15, wherein the adjustable loop member includes a filament wound into a coil defining an overall shape of the adjustable loop member.
 17. The tissue fixation apparatus of claim 16, wherein: the locking member further includes a sleeve, the adjustable loop member passes through the sleeve, and the engagement members are disposed adjacent opposite ends of the sleeve.
 18. A tissue fixation apparatus for attaching a first tissue to a second tissue, comprising: a flexible construct attachable to the second tissue by an anchor, the flexible construct including: a first adjustable loop and a second adjustable loop which are each configured to pass through the first tissue, and to be spaced apart along an outer surface of the first tissue in a first direction; a first tensioning member extending from the first adjustable loop and pullable to reduce a size of the first adjustable loop; and a second tensioning member extending from the second adjustable loop and pullable to reduce a size of the second adjustable loop; and an elongated locking member configured to be received within the first adjustable loop at a first size of the first adjustable loop and to be received within the second adjustable loop at a first size of the second adjustable loop, the first adjustable loop configured to compress the first tissue between the locking member and the second tissue at a second size of the first adjustable loop, and the second adjustable loop configured to compress the first tissue between the locking member and the second tissue at a second size of the second adjustable loop.
 19. The tissue fixation apparatus of claim 18, wherein: the flexible construct includes a braided body defining apertures disposed adjacent opposite ends, and the first and second tensioning members extend from the opposite ends and pass through the apertures to create the first and second adjustable loops.
 20. The tissue fixation apparatus of claim 19, wherein the braided body and the first and second tensioning members cooperate to lock the first and second adjustable loops at the second sizes. 